CVE-2026-30075

Name: CVE-2026-30075
Creator: NVD / NIST
Published: 2026-04-08T17:21:18.503+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-30075 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. OpenAirInterface Version 2.2.0 has a Buffer Overflow vulnerability in processing UplinkNASTransport containing Authentication Response containing a NAS PDU with oversize response (For example 100 byte). The response is decoded by AMF and passed to the AUSF component for verification. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

OpenAirInterface Version 2.2.0 has a Buffer Overflow vulnerability in processing UplinkNASTransport containing Authentication Response containing a NAS PDU with oversize response (For example 100 byte). The response is decoded by AMF and passed to the AUSF component for verification. AUSF crashes on receiving this oversize response. This can prohibit users from further registration and verification and can cause Denial of Services (DoS).

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.38%

30.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Openairinterface	Oai-Cn5g-Amf	2.2.0

References

https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-ausf/-/issues/6Exploit, Issue Tracking, Third Party Advisory
https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-ausf/-/issues?show=eyJpaWQiOiI2IiwiZnVsbF9wYXRoIjoib2FpL2NuNWcvb2FpLWNuNWctYXVzZiIsImlkIjo1NDE5fQ%3D%3DExploit, Issue Tracking, Third Party Advisory
https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-ausf/-/issues?show=eyJpaWQiOiI2IiwiZnVsbF9wYXRoIjoib2FpL2NuNWcvb2FpLWNuNWctYXVzZiIsImlkIjo1NDE5fQ%3D%3DExploit, Issue Tracking, Third Party Advisory

Timeline

Published: Apr 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-30075?

How severe is CVE-2026-30075?

CVE-2026-30075 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-30075?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-30075?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST